316004221501 has 2 divisors, whose sum is σ = 316004221502. Its totient is φ = 316004221500.

The previous prime is 316004221483. The next prime is 316004221543. The reversal of 316004221501 is 105122400613.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227241936601 + 88762284900 = 476699^2 + 297930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316004221501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316004221301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158002110750 + 158002110751.

It is an arithmetic number, because the mean of its divisors is an integer number (158002110751).

Almost surely, 2^316004221501 is an apocalyptic number.

It is an amenable number.

316004221501 is a deficient number, since it is larger than the sum of its proper divisors (1).

316004221501 is an equidigital number, since it uses as much as digits as its factorization.

316004221501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 316004221501 in words is "three hundred sixteen billion, four million, two hundred twenty-one thousand, five hundred one".